A Collector Promoter for Apatite Flotation in the Serra do Salitre Complex
Abstract
:1. Introduction
2. Materials and Methods
2.1. Mining Process and Mineralogy Characterization
EDS Region | Element/Mineral Grade (wt%) | ||||||
---|---|---|---|---|---|---|---|
F | MgO | SiO2 | P2O5 | CaO | TiO2 | Fe2O3 | |
1 | - | 11.4 | 51.4 | - | 22.6 | 0.70 | 11.4 |
2 | - | 11.3 | 51.1 | - | 21.7 | 0.51 | 12.9 |
3 | 2.85 | - | - | 40.5 | 53.3 | - | - |
2.2. Size Distribution of the Sample
2.3. Soy Oil Fatty Acid (SOFA) Characterization
2.4. Contact Angle Measurements
2.5. Reagents Surface Tension Analysis
2.6. A Qualitative Trend of Collector Adsorption through Surface Tension
2.7. Bench Scale Column Flotation Tests
3. Results and Discussion
3.1. Comparison between SOFA and Collectors’ Mixture Composition
3.2. pH Effect on the Surface Tension and Contact Angle
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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P2O5 | CaO | SiO2 | Al2O3 | Fe2O3 | MgO | TiO2 | BaO | PF | CaO/P2O5 |
---|---|---|---|---|---|---|---|---|---|
4.51 | 14.6 | 32.1 | 4.43 | 19.3 | 7.21 | 8.62 | <0.10 | 5.28 | 3.24 |
Mineral | % | Mineral | % |
---|---|---|---|
Hydrobiotite | 31.0 | Granate | 6.1 |
Pyroxene | 18.0 | Perovskite | 3.4 |
Apatite | 8.1 | Other oxides | 3.0 |
Magnetite | 8.1 | K-feldspar | 2.8 |
Titanite | 7.5 | Quartz | 1.5 |
Clay minerals 12–15 A | 6.6 | Others | 4.8 |
Density at 20 °C (g/cm3) | 0.91 |
Density at 50 °C (g/cm3) | 0.89 |
Acidic index (mgKOH/g) | 154.11 |
Iodine index (gI2/100 g) | 112.75 |
Saponification index (mgKOH/g) | 196.13 |
Free fatty acid (%) | 78.58 |
Chain distribution (%) | |
C6 | 0.18 |
C8 | 0.20 |
C10 | 0.14 |
C12 | 0.16 |
C14 | 0.38 |
C16 | 16.48 |
C18 | 5.38 |
C18:1 | 28.64 |
C18:2 | 44.17 |
C18:3 | 4.26 |
Total | 100.00 |
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de Lima, F.V.; Budemberg, G.; Cruz, S.H.; Braga, A.S. A Collector Promoter for Apatite Flotation in the Serra do Salitre Complex. Minerals 2023, 13, 599. https://doi.org/10.3390/min13050599
de Lima FV, Budemberg G, Cruz SH, Braga AS. A Collector Promoter for Apatite Flotation in the Serra do Salitre Complex. Minerals. 2023; 13(5):599. https://doi.org/10.3390/min13050599
Chicago/Turabian Stylede Lima, Franciele Vanessa, Gabriela Budemberg, Santiago Henrique Cruz, and André Soares Braga. 2023. "A Collector Promoter for Apatite Flotation in the Serra do Salitre Complex" Minerals 13, no. 5: 599. https://doi.org/10.3390/min13050599